3M 7000121124 Cross Buff Very Fine 2 Ply 8-32 Thread

Product Description

The 3M 7000121124 is a two-ply cross buff abrasive tool designed for fine surface finishing, deburring, and light material removal on metal, plastic, and composite surfaces. Measuring 1 inch in length by 0.375 inches in width, it fits standard rotary tools and die grinders via an 8-32 threaded mounting hole. The very fine grade construction delivers consistent surface conditioning without aggressive stock removal, making it well suited for finishing work in tight or contoured areas. Rated to 20,000 RPM, it handles high-speed rotary tool operation without compromising integrity. Machinists, maintenance technicians, and fabricators typically reach for this buff for detail work and final finishing passes.

This cross buff is used in precision finishing applications across metalworking, fabrication shops, and maintenance environments. The 0.375 inch diameter allows access to recesses, bores, and contoured surfaces that larger abrasives cannot reach. It is commonly used on aluminum, steel, and plastic components where surface quality and dimensional control matter. The two-ply construction provides added durability and consistent abrasive action through the life of the buff. Suitable for both bench-mounted rotary tools and handheld die grinders with compatible 8-32 threaded mandrels.

Key Features

• Very fine grade abrasive for finish work and light deburring
• Two-ply cross buff construction for added durability and consistent cut
• 8-32 threaded hole for secure mandrel attachment
• 20,000 RPM maximum rating for high-speed rotary tool use
• Compact 1 inch x 0.375 inch size for access to tight and contoured areas

Compatibility

Designed for use with rotary tools and die grinders equipped with a compatible 8-32 threaded mandrel. Consult your tool manufacturer to confirm mandrel thread compatibility before use.

Installation Notes

Installation is performed by threading the buff onto a compatible 8-32 mandrel mounted in a rotary tool or die grinder. Ensure the buff is fully seated and the mandrel is securely tightened before operation. Always verify that tool RPM does not exceed the 20,000 RPM maximum rating marked on this product. Wear appropriate eye protection and follow all applicable shop safety procedures during use.